| RefNo | Title | Date |
| L/E/75/1 | Industrial Rhythm \ Business Plebiscite | 22 January 1951 | 25/01/1951 |
| L/E/75/15 | Industrial Rhythm \ Mobilising Woman-Power; Scientific Methods of Education of Factory Workers | 10 February 1942 |
| L/E/6/91 | Choreology (Effort) \ Report by Raadgevend Efficiency Board | 1952 |